Baby food was developed in the 19th century. It was invented by Here Nestle in 1867., however mass marketing of baby food began in the 1920s. It was embraced by women who were tired of making their own at home. Did you know? By 1948, baby food was the most commonly purchased item in the large American cities. Nearly twice as many cans or jars of baby cereals, fruits, vegetables and meats were sold compared to the next nearest competitor, evaporated milk!